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(No Model.) v 4 Sheets-Sheet 1 A. W. MGINTYRE. I MAGHINE FOR GRINDING GAR WHEELS. No. 288,717.

f1-1 -..nlslll lwxlli {if} N15 Pa ented Nov. 20,11883.

NV PETERS Phute-Lilhagmpher. Washington. D4 C.

(No Modem 4 sheets-sheet `2` Y A. W. MCINTYRE.

MACHINE POR @BINDING GAR WHEELS- No. 288,717. Patented Nov. 20, 1883.

(No Model.) 4 Sheets- Sheet 3.

A.. W. MGINTYRE. l MACHINE FOR GRINDING GAR WHEELS.

Patented Nov. 20, 18837.

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L .fu nv e h S e Vnv h s 4 E. `un... Y m1 N I G M W A d nu M 0 m 4MACHINE PoR GRINDING GAR WHEELS, No. 288,717.

UNIirmo. STATES -l PATENT DEEICE.

lAUGUSTIN w. MCINTYEE, CE CHICAGO, ILLINOIS, ASSIGNCE, EY MEsNE ASSIGNMENTS, To THE AMERICAN CAE-WHEEL GEINDING COMPANY, CE

SAME PLACE.

MACHINE FCR `GRINDI'NG CAR-WHEELS.

SPECIFICATION `forming part of Letters Patent No. 288,717, dated `November 20, 1883, Anplieation i1edJune9,l8B2. Renewed May 19, 1583. (No model.)

T- ctZZ whom it may conceive.- Be it known that I, AUGUSTIN W. MCIN- TYEE, a citizen of the United States, residing at Chicago, in the county of Cook `and State of Illinois, have invented certain new and useful Improvements in Machines for .Grinding A Car-Wheels; and I do hereby declare the following to be a full, clear, and exact description of the same, sufficient to enable those Ioskilled in the art to which said invention appertains `to make, construct,fcompound, and use the said 4invention or improvements, reference being had to the accompanying drawings, in which- Figure 1 is a frontelevation, vpartly in section, of the improved machine. `Fig. 2 is a plan view of the same. Fig. 3 is a viewin elevation from the inner side of one of the standards,the basethcreof being in partbroken 2o away and shown in Section. To avoid obscu `rity the car-wheel and abradingwheels are left in dotted lines, andvthc exhaust mechanism, Fig. 6, entirelyV removed. Fig. '4 is a sectional View, and Fig. 5a view in plan, of the grinding-wheel and its journal-box next in `contact `with the liange of the carwheels. Fig. 6 is a view in elevation from the inner side of one of the standards, the base whereof `is in part section, and isf designed to show the 3C exhaust mechanism for withdrawal of fine dust of abrasion. The car-wheel is left in dotted lines,to allow for View of other parts. Fig. 7 is a detail view, showing one ofthe grinding-wheels in contact with the rim or tread of thecar- 3 5 wheel, and the trumpet-like coupling ofthe exhaust mechanism singular to said wheel. Fig. l 8 is a view in planof the series of grindingwheels in contact with the defective tread of a car-wheel. Fig. 9 is a view` in elevation,

`4o partly sectional, ofthe` journal-bearings of the car-wheel axle, showing, also, a portion of the mechanism to rotate said axle. Fig. l0 is a detail view in cross-section of the adjustable journalblocksto sustain the car-wheel axle.

Fig. 11 is a detail view in cross-section of the T-groove in Vthe bed-plate, and the bolt and nut to adj ust the movable standard therein.

(lastiron car-wheels having a chilled rim or tread frequentlydevelop imperfections or 5o soft spots upon the surface of the tread after` more or less usage, which imperfections make the tread toV wear unevenly, so that some portions thereof become flattened or irregular,

and the perimeter of the wheel is nozlonger true or concentric with repect to the axle upon 5 5 which itis mounted. The treadbeinguntrue,

Y irregularities exist, the wheel in its revolution` tends to pound the rail, and this, after. a little 6o `while, to such a destructive extentthat the wheel must needs be replaced, oftentimes long before the life77 of the wheel, as determined by the depth of the chill, is atan end. Although it is highly desirable to save `the dis" carded wheel fori future use by .truing the tread, so that the wheel may be made effective to the full depth of the chilled portion of the rim, such is the hardness of the tread that it has been found better economy in general to neglect the Wheel entirely than to attempt by any of the ordinary tools or methods to restore it to an even running condition. Here tofore effort has been made, however, to remove the irregularities in surface of the tread 7 5 of the wheel, as before described, by use, of a machine resembling the ordinary metalturning lathe, upon the centers of the head and tail stocks of which the ends of the car-wheel axle were sustained, the defective wheels remaining rigidly on said axle the same as when in readiness for use upon theroad. The axle being thus centered in the lathe was slowly revolved 4 thereon, and necessarily the car-wheels with it, whereupon the treads of these latter were each borne upon by a rotating wheel, of emery or like abrading composition, set in a traversing toolcarrier or slide-rest usual to said lathes, which said grinding-wheels were` applied.` to and fro across the surface of the tread until the blemishes had been removed and the wheelwas again trued around its entire perimeter. `If succeeding sets of wheels chance to differ, as when of broad, narrow, regular, or of some intermediate gage, or when of greater or lesser diameter than the preceding, or even when unil form therewith, it is manifest that inasmuch as this whole weight ofthe suspended axle and of the wheels thereon is sustained byithe centers of the head and tail stocks of the lathe, roo` 2gsm? much time and care must be expended, both in mounting and dismounting the work and in maintaining it in nice adjustment upon this lathe. By just so much this economy and running capacity of the machine are lessened.

Again, there is but a single abrading-wheel to each ofthe car-wheel treads to be reduced, and

as the thickness of said abrading-wheel must be in practice less than the width of the tread, so that no risk of destruction or of overheating be incurred, it follows that said wheel must be appliedy back and forth transversely of the tread, consuming much more time than if abrasion were proceeding over the entire width of the tread at once; nor is said grinding-wheel adapted to reduce imperfections of the flange or to keep the same of like depth as originallya precaution of importance when treating the wheels of city tramways.

My invention has for its object to remove irregularities of surfaces from treads of carwheels, whether new or old, so that said treads shall be of true disk throughout, and accurately concentric with the axle upon which they are mounted, to which end my invention consists of certain new and useful improvements in machines for grinding car-wheel treads, substantially as hereinafter set forth,

and distinctly defined in claims.

3o As shown in the drawings, a heavy bed or base plate, A, extends entirely under the machine and serves to sustain the several working4 parts. Two upright standards, B B,

placed parallel to each other and at distance apart approximately equal to the length of an ordinary car-wheel axle, are firmly secured to the bed-plate A by suitable bolts and nuts, a

a', in manner well understood.

Each upright standard B is composed of a 4o lower xed portion or base section, B', and of an upper movable part orA section, B2, which latter consists of side plates, I) b, and end and top plates, b' b', securely bolted or otherwise j oined together, so as to form a skeleton-like frame or shell of substantially rectangular shape. The side plates, b b, have large rectangular openings formed in them, which, as said plates are set exactly opposite and parallel, allow for the play of the j ourn'al-boxes of the abrading wheels or grinders set therein, in manner hereinafter described.

The base section, B', and the upper section, B2, are hinged together at the backy of the standard by pin-bolt, b2, which passes through perforated ears or lugs b, formed in the side plates, b b, and in the ybase section, B', or in other convenient manner. The movement of the upper section, B2, to and from the base -section, B', of the standard, around the hinge or pivot-pinb2 as an axis, is regulated by the toggle-lever C, the two arms or members c c of which are jointed at their remote ends, the

- first to a pin-bolt, d, passing transversely through the shell of the upper section, B2, and

65 the second to a bolt, d', passing through projecting vlugs cl2, formed on the interior of the hollow casing or base section, B', of the standard. The upper arm, 1c, of thetoggle, depending within the upper section, B2, of the standard, enters the base section, B', through a long slit or slot in the upper face thereof, and is j ointed at its end to the adjacent end of the other arm, c', and of the screw-rod D, which said rod passes through a perforated block or bearing, d2, that is pivotally mounted in an opening in the front of the base section, B', and bears upon its outer end a threaded sleeve or nut, (1*, to which the hand-wheel D2 is keyed. By this arrangement of toggle-lever C and operating-rod D the upper section, B2, may be quickly raised from or lowered to the base section, B', of the standard, as desiredthat is to say, upon turning the hand-wheel D2, and in consequence the nut d", keyed thereto, the screw-thread of the latter engages the like thread of rod D,withdrawing or advancing it, as the case may be, from or into the interior of base section, B', and straightening or bending the toggle-link accordingly, thereby lifting or lowering the upper section, B2.

It isv to be noted that as the bearing` d is pivoted it allows for the composite motion of the rod D and toggle-joint, due to the separate centers d and d' of the swinging arms c e.

At exactly opposite. points in the upper faces of the base sections, B', of the standards are cylindric cavities bt, which seat the flanged bases of the bearing blocks or boxes 115, Figs. l, 3,1and 9, upon which boxes restand rotate the journals of the car-wheel axle E. There may be a series of said replaceable boxes differing from each other in internal diameter, to adapt the same tofdifferences in diameter or curvature ofthe various journalsybut in lieu of this the boxes may bc made as showif in Fig. 10, in which event the cavities b4 of the base sections, B', will have upon their interior the curved section-pieces b, which by screw-rods b" and ja1n-nuts may be adjusted to snugly lit the curve of the car-wheel journal, so as to insure perfect evenness of revolution. A perforated plate, b2, at base of cavity b4 traps the flying dust, Svc., so as to avoid the danger of cutting the face of the journal. A cover, b, hinged to thebase section, B', of the standard, and packed with felt saturated with paraffine or the like, fits down over the journal of theear-wheel axle when in position and lubri cates the same.

From the inner face of the hinged section B2 of the standards there depends a swinging hook, f, which is pivoted at f to the side plate, b, of the said section, and, as the carwheel axle E is in position upon the boxes b, rests with its angularly-bent end beneath said axle. Vhen the swinging section B2 0f the standard is lifted upon its axisV b2 by operaation of the toggle-lever/C, the hook f rises therewith and unships the journals of the earwheel axle E from the bearings b5, so that each journal rolls forward onto the extended lip bT of the base section, B', until the wheels E' E2, mounted on said axle E, meet the rails G' G2, when the set may be quickly and easily re- IIO `moved and another as readily returned for grinding, a screw-jack,vG3, under eachof the 4rails allowing for perpendicular adjustment free to move up and down in the vertical ways to which they are fitted, and are adjusted therein, at any point desired, by means of the screw-threaded rods h, which said rods are swivel-jointed at one end to the boxes h, and intermediate of the hand-wh eels h2 at the other end of said rods. These engage with screwthreaded bushings h3, that are secured to the top plate of the casing B2. It ismanifest that as `each grinder of theyseries is mounted in a journalbox wholly disconnected from i the other, each of said wheels may be accurately adapted to the curve of the car-wheel in process of being ground without in the least disturbing the adjustment of the remaining grinders of the set. y The grinders are made from y, any desired abrading composition, and may I have their cutting-faces sloped to conform to the cone or incline in surface of the car-wheel I, tread, if preferred.

The grinding-wheels have the usual hub or y core perforated to receive and set upon the belts to suitable line-pulleys and shafting,

whereby the grinding-wheels are revolved.

It is of importance that each axle 'i (except that bearing the wheel H', as hereinafter described) should have transverse rings or ribs A formed thereon, which take into corresponding grooves in the lining-plates of the journalboxes h, as shown at i4, and so prevent all lateral or endwise movement of said axles in their bearings.

H .In general, the grinding-wheels HH are arranged in such relation that transversely of the car-wheel each of said grinders occupies its own appropriate space, so that no two `of 4 said grinders are to be found working over the same portion ofthe surface of the tread. Sometimes, however, the irregularities in the tread t are such that it is of advantage to have two of the grinders operating upon the same field or l space, to which end the central wheels, H H,

have loose rings ZZ set `upon the axles with l. said wheels, which, by removing the end nuts, j j, `may be taken from the axles and returned 4 againnpon the side of said wheels opposite to `what is shown in drawings, Fig. 8; whereby the wheels will beshifted in position and placed in alignment with the end wheels, H H', of the set.

t has an additional function to perform, in par- 1 ticular where car-wheels of city tramways or Moreover, the back wheel, H',

`the like are being treated, which is to accurately reduce the flange of the rim, so that it shall be of `the'same height above the tread as before, and the continuity of surface between tread and flange be preserved. To this end said abrading-wheel H', Figs. 4 and 5, has a side arm or bracket, m, bolted to its journalbox h, the upper end of which bracket is perforated to admit the passage of the axle t'.

Between the bracket m and the sides of the 'box h, and upon the axle z', is mountedthe pulley k, said pulley and axle being fitted with a feather-and-spline or like joint, to allow for lateral movement of the axle in its box h and through the pulley without affecting the speed of rotation of the grinderH. To accomplish this lateral movement or shift of the axle i, said axle has two raised bosses, 1%, near its end, between which loosely rests the collar a of a bent rod, ai, which said rod passes through perforations in the bracket k and boxh, and has a screw-thread at its end to engage with like thread in the bushing n3, that is fitted to the side plate of thejournal top h. The bushing n3 is free to revolve, and has upon its end axpinion-wheel, at, which engages with a worm, o', of a set-rod, @,having a hand-wheel, o2, at its end, and sustained in projecting lugs of the sliding box h. If, now,

the hand-wheel 02 be rotated, the worm-gear o a* causes the bushing a3 to rotate, and this in turn, through its threaded connection with rod a2, advances or retracts said rod, together with the axle z', transversely through the box h., whereby the grinder H may be shifted to any part of the liange of the car-wheel at the` same timethat the other hand of the operator isfree to govern the downward movement of said grinder H by the hand-wheel h2.

' To remove the flying dust of abrasion from IOO the vicinity of the workman, there is provided an exhaust-pipe, p, connected with any suitable fan, (not shown,) to which pipe there is joined a flexible section, p, of rubber or like composition, and beyond this a series of slightly-curved short coupling-pieces, p2, each of which has a branch pipe, p3, terminating in a curved trumpet-like mouth, p, that is open on the side next against the grinding-wheel.

IIO

The flexible section pallows the sustainingcollars q, and with them the coupling-pieces p2, which they encompass, to be readily adjusted in the slots q', cut in the faces ofthe inner side plate, b, of the standard B2, so as to conform in height to the diameter of the car-wheel being ground, and also allows the hinged section Bl to be freely moved to and from the base section, B, of the standard without disarrangement or disconnection of any of the parts. Telescopic joints on the two center branch pipes, p3, permit the adjustment of said pipes, and, in consequence, of thetrumpet-mouth p* thereof, to and fro across the head in keeping with the shift in position of the center wheels H H, as hereinbefore described.

l As shown in Fig. 7, the grindingwheel, in wearing away, descends in vertical line toward the tread of the ear-wheel, and does not l liig. 1l.) lThe sectional plates or brasses withinterfere with the position of the trumpetmouth p* of the exhaust-pipe. To stillv further reduce the dust, but more particularly the temperature of the car-wheel, awater-pan, r, is provided, which constantly submerges the rim of the wheel as the same rotates.

From a base plate,G,whieh is firmly bolted to the' bed-plate A of the machine, rise two upright posts, G G, which at their upper ends afford bearings for the arbor or mandrel M, said mandrel intermediate of the posts having a worm-wheel, N, secured thereto and inclosed within a tight casing, O, which latter is secured to the base plate, G. A worm on the end of shaft P meshes with the wheel N, said worm being in part submerged in the oil-box o, located at the bottom of the casing O. A clutch, k, on the shaftl? may be shifted through the medium of lever 7a2 and by suitable connection from the front of the machine, so that the revolution of the worm-gear, and, in consequence, of the mandrel M, may be read ily and quickly controlled. rlhe mandrel M has the usual faceiplate, tand projecting pins t,which latter is to engage with the carrier t", attached to the end of the car-wheel axle in the wellknown way, and at the end opposite the faceplate the mandrel is borne upon by screw-rod l, passing through cross-head 2, which is sus tained upon rods 8 3, projecting from the post G, whereby to firmly brace the mandrel against end thrust or play. A spindle, t, tightly socketed in the end of mandrel M, expands at its front into a head, f, concave-faced to receive the end ofthe ear-wheel axle, which latler is free to revolve therein, and yet be maintained true and firmly against end-thrust.

At the tail end of the machine a screw-rod, 4, passes through an arm projecting froln the base section, B', which said rod has an expanded end, 5, to fit into a socket in a block, 6, that has a concave face to encompass the end of the car-wheel axle, the block being suported by a rest from the projecting arm of the base B. Vhen the car-wheels and axle are in position in the machine, said axle rests at its journals wholly upon the boxes b5 of the standards B, the entire weight being thereby sustained. The screw-rod iis then advanced until the ends of the axles are forced snugly home within the concave faces of the head t* and of the block 6, and so tightly held against any end-play or displacement such as would tend to make the revolution of wheels and axle irregular. If the axle be of such length as not to be clamped within limited play or compass of the screw-rod 4, the standard B, to which said rod is attached, may be moved along in the grooved T-ways of bed-plate A,

, Figs. 1, 2, and 11, to any desired point, and then 'rebolted,v thus accommodating the machine to any size of axle-broad or narrow gage, as

thecase may be. To insure ease of movement of standard B upon the bed-plate, it is advisable to make the bolts c of conical head, so that they will not bind in the Tgrooves. (See in the j ournal-boxes b5 being adjusted to conform exactly to the curvature of the axle-journals, the clutch k is shifted, causing the wormgear, the mandrel, and the car-wheels and axle to revolve atspced suitable for grinding. Section B2 of standard is then lowered by means of toggles C, bringing the abrading-wheels H H in contact with the tread of the car-wheel, each individual wheel or grinder being capable of independent adjustment in the ways of section B2, so as to secure uniformity or variation of cutting action, as desired. When the calipers show the truing of the rim of the carwheel to be completed, a single turn of handwheel D2 causes the toggle C to raise the section B2 andthe grinders away from the face or tread of the ear-wheel, and on unshipping the clutch k the work may be rapidly dismounted to make way for the next set of wheels.

Although the invention has been described as of particular value in treatment of cast-iron car -wheels, which develop imperfections in surface of tread after more or less usage, it is by no means confined in practical operation to any one class or condition of wheel. New wheels, as well as old, may be easily reduced to true disk by operation of the machine, and these, whether made wholly of cast metal or when provided with shrunk wrought tire, as in ease of locomotive drivers, paper car-4 wl1eels,and the like. In every instance, if the wheels be set upon an axle, they may be advantageously worked in this machine. G ood results may be attained from its use, whether the grimling-wheels'revolve in same direction with or contrary to that of the car-wheel set, and I contemplate the use. of the machine under both conditions; nor if the tire or tread of the car-wheel be unusually broad or narrow-the latter in case of the wheels of city tramways-is it necessary to have four grinding-wheels to the set. The number of these must depend upon the character of the work the machine is required to do.

It is obvious that many modifications of the details of the machine maybe made without departing from the spirit of the invention, which is not restricted t'o the precise construction herein shown and described. Thus the section B2 may move to and from the base section, B, of the standard in vertical ways, instead of being hinged thereto, and may be moved by a screw -rod arranged to engage therewith, instead of by use of the toggle mechanism, which is the preferred form herein set forth. Any of the usual forms of sectional pillow-block may be adapted to the cavities of base section, B', to sustain the journals of the car-Wheel axle, and, if desired, other wheels than the flange-grinder H may have their axles to shift transversely of the tread. These and like obvious changes in structure are deemed to be within the scope of the' invention and the intent of the claims hereinafter specified.

Havingthus described the invention, what IOO IIO

I claim as new, and desire to secure by Letters Patent,` isj 1. A machine for grinding car-wheels, having standards upon which the axle of l a set of car-wheels may rest and rotate, substantially as described.

2. Inrmachines for grinding car-wheels, the combination, with the base section of a standard upon which the axle of a car-wheel set may rest and rotate, of a movable section of said standard carrying the grinding or abrading mechanism proper, substantially as described.

e, 3. In machines for grinding car-wheels, the combination, with the-base sectiomB, of the hinged section B2 of the standard, and the toggle-lever C, `substantially as set forth.

4. In machines forgrinding car-wheels, the combination, with the base section and movable section of the standards B, of the swinging hook f, substantially as described.

5. In machinesforzgrinding car-wheels, the combination,fwith"the base section of a standard having an extended lip to sustain the axle of the car-wheel set, of a set of rails adjustable with respect thereto, substantiallyas described.

6. Inmachines for grinding car-wheels, the combination,` with thebase' section to sustain the car-wheel axle, of a movable section of a 'standard having a series' of grinding-wheels adjustable therein, substantially as described.

7. In machines for grinding car-wheels, the combination, with themovable section of the standard, of a series,oflgrinding-wheels, one of which, togetherwith its axle, is laterally adjustable, `substantially as described.

8. In machines for grinding car-wheels, the combination, with the movable section of the* standard, of a grinding-wheel, its axle, `and a pulley mounted thereon, a shifting rod, and

mechanism, substantially as set forth, to move .l the same' laterally, substantiallyas described.

9. In machines for grinding car-wheels, the

` combination, withrthe-movable section-of a ble connection with the main exhaust-pipe, substantially as described.

10.- In machines for grinding car-wheels, the

combination, with aseries of adjustable grinding-wheels, of a dust-exhaust mechanism having means, substantially as described, to adjust the same with relation to the wheels, substantially as described.

11. The combination, with `the revolving mandrel M, of the spindles t, the base sections of the standards upon which rests the car-wheel axle, the adjusting-rod d, and the block 6, substantially as described.

12. The combination, with the standard upon which a car-wheel axle may rest and rotate, of a series of abrading-wheels mounted in the standard, out of alignment one with the other, and in conformity to the curvature of the car-wheel, substantially as described.

13. The combination, with the standard upon which a car-wheel axle may rest and rotate, of a series of grinding-wheels adjustable in said standard, substantially as described.

14. The combination, with the standard, of a series of grinding-wheels adjustable therein, and of a dust-exhaust mechanism, which latter consists of a main pipe, `a ilexible section thereof, a series of short coupling-pieces having branch pipes with trumpet-like mouths,

one or more of said branch pipes beingtele-` scopically j ointed, and of encircling-collars and set-nuts, whereby to sustain the exhaust mechanism, as desired, in suitable slots in the standard, all substantially as described.

15. `The combination, with the standard up on which a car-axle mayl rest and rotate, of

-abrading mechanism adjustable in said standard, substantially as described.

` In testimony whereof Iihave hereunto set my hand, inthe presence of two witnesses,

'this 6th day of June, A. D. 1882.

AUGUSTIN W. MOINTYRE.

Witnesses: Y

EDWARD F. GoRroN, FRED W. GUNKLE. 

